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Radio recommendations

Old 04-03-2023, 06:24 AM
  #26  
Clugh
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The most resistant part of a racing boat is the rudder blade which is pulled at high speed through the oh-somtough medium water. At very high speeds, very thin wedge profiles are used, which are simply made of knives. Now I have presented an alternative that simply pulled through the water has only 1/5th of the resistance of an optimal wedge rudder and if it is equipped with a drive for self-movement even a very small part of Vortireb generated, thus no more resistance generated. It is a simple steel disc that is sharply ground, rotates with the water friction and thus generates only a fraction of the surface friction even with the shear on the surface. If the disc rotates driven by a motor, propulsion is even created. It is not accepted, although almost the largest share of the resistance is thus eliminated and a much smaller drive power is required. Understand who wants it. Now a racing kayak gets such a rudder blade, when it comes to muscle power you are already more open-minded.

The pictured disc and the rudder blade produce the same rudder effect from certain situations the disc has even more lateral area but the disc has the much lower flow level.

~Cristian Lucas~
Old 04-03-2023, 01:55 PM
  #27  
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Thanks for the information. I probably will try the Rattlesnake turn fin
Old 04-09-2023, 05:53 PM
  #28  
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Originally Posted by kevinthoele
Thanks for the information. I probably will try the Rattlesnake turn fin
I think you might like this one better.
Mojo Racing Turn Fins | Offshore Electrics


Last edited by Clugh; 04-10-2023 at 03:12 AM.
Old 04-10-2023, 03:17 AM
  #29  
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The rattle snake fin is cool but i dont like the bevel at the blade bottom or the sharp transition from the from front to bottom bevel. Id radiius and sweep that front bottom corner and transition. Thats just mu opinion. I haven't considered Bernoulli or anything of that nature.. test and tune is the basr way and between the fins I dont know which is thinner. What you dont want is a fin to create lift so you have to consider what is going on beneath the surface.in the water.
Also do you have your radio telemetry configured and the Futaba ZGZPS module?

Regards Hubert

Last edited by Clugh; 04-10-2023 at 03:25 AM.
Old 05-17-2023, 05:35 AM
  #30  
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That is interesting part. Keeping boat flat on water. Getting closer as boat seems to stay put now. I had Props 4 U make me some different set ups Iím trying. Itís been fun working through all the combinations.

Hopefully settle on a couple of props and have him make me some stock. Last time out the boat was running well after about 8 laps right before I bring in it suddenly went straight, I knew I must have hit something and sure enough bent prop and dent in turn fin. Was able to file and get turn fin back. Might send prop to Mark to see if he can do anything with it. Leading edge bent but not dented. Who knows. No blood so not turtle. Probably small stick floating on water
Old 05-17-2023, 09:22 AM
  #31  
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Originally Posted by kevinthoele
That is interesting part. Keeping boat flat on water. Getting closer as boat seems to stay put now. I had Props 4 U make me some different set ups I’m trying. It’s been fun working through all the combinations.

Hopefully settle on a couple of props and have him make me some stock. Last time out the boat was running well after about 8 laps right before I bring in it suddenly went straight, I knew I must have hit something and sure enough bent prop and dent in turn fin. Was able to file and get turn fin back. Might send prop to Mark to see if he can do anything with it. Leading edge bent but not dented. Who knows. No blood so not turtle. Probably small stick floating on water
''
Kevin before i do anything else i need to find out if the truth is going to continued to be censored for the lying vendors sake! Their motors ar no where as good as my custom winds!!! and thats a fact . Theyve erased an entire thread of cold hard facts!

The idea as presented will not work as expected and thats been posted two. And Since when does 89000 view counts get totally erased without a trace,.
They smashing the report button to keep you all with interest from the truth. Someone here uses the scorpion trash!

The German is mad he does not have my equipment eta or forum following and that is also a fact!

Last edited by Clugh; 05-17-2023 at 09:26 AM.
Old 05-17-2023, 09:28 AM
  #32  
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If you dont like what they are doing please support my efforts of TRUTH and complain about it. If you dont you will not see the real....


They are haters Kevin. And they are lying to OSE and all the American forum about this Superior tech which is truly a joke.. They don't bring any more quality than we do and we have many motors that actually have higher efficiency.




When you have no answer for a scope pa or rta then you send false report to keep consumers from the truth!
if they are superior then where is the battery consumption report or the straight edge across the Corvus????

Last edited by Clugh; 05-17-2023 at 09:35 AM.
Old 05-17-2023, 09:43 AM
  #33  
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Power factor - Wikipedia

Read this Kevin
then understand they cant find power factor very easily without a capable piece of diagnostic equipment. The Yokogawa I posted i one of the best motor analyzation tools n the world. Many hobby manufactures do not own one!



The lehner nor Scorpion is more efficient than me and thats the bottom line. They will not post the battery consumption numbers or the power density with the noisy commutation he has he knows it will fall short. Its wasting plenty of power. An amp sucker..


I also wont build their friends plane thread with my informative posts.

Last edited by Clugh; 05-17-2023 at 09:45 AM.
Old 05-17-2023, 09:49 AM
  #34  
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u need a scope with cursors to measure the phase shift between the voltage and current Kevin!!!!!!

So what are they talking about????


They make zero sense and anyone that thinks this is questionable knows absolutely nothing about electronics

I DO NOT HAVE TIME FOR FORUM NONSENSE!!!!

Last edited by Clugh; 05-17-2023 at 09:52 AM.
Old 05-17-2023, 09:52 AM
  #35  
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'
'
The more its denied the more I know that forums are not held to any standard of accuracy or validity in the technical pages and that is sad.

Last edited by Clugh; 05-17-2023 at 10:04 AM.
Old 05-17-2023, 10:16 AM
  #36  
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Look at him sitting in your room now


Currently Active Users Viewing This Thread: 2 (2 members and 0 guests)
Clugh*, BOHO1

The mods seem unable to pick up on these two cats little report button game in place to block YOU from the truth. Nothing ha[ppens with it but they follow me somewhere else and actually broaden the exposure to what i bring to new modelers and forums..

It never ends I can assure you.

Black Karma "POC" Edition
Total losses 74.6 !
Copper .1 watts
Iron 73.6 watts

Esc .8 watts
Battery .1 watt
Kt= 11.55m Nm/amp
Km = .1639 Nm/Sqrt watts
Power Density 59.88[Km≤/g]
Maxon Eq 1.92 Max Eta 96%


Where is their data on the subject matter of who is the most efficient ?????? . The name of the motor came from them! They thought that was cute...

Last edited by Clugh; 05-17-2023 at 10:30 AM.
Old 05-17-2023, 10:26 AM
  #37  
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here is the scorpion that is far behind it in every way

Powercroco
Iron losses 280.9 watts
Copper losses.3 watts
Esc 7.2 watt

The battery loses 2.4 watts
His power density is 50.18 Km≤/g
His Kt is 4.81 mNm/amp
Km .1552 Nm/sqrt watts
Maxon eq 1.92 Max Eta 93%

Hi ralph enjoy it!!!!
Old 05-17-2023, 10:29 AM
  #38  
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The Lehner rep wont post his but eventually I will. I can easily calculate it from his constants but its more impactful that the forum see he will not post it because it is not better than my Custom hand wind.

If it is hed post it!!!!


Last edited by Clugh; 05-17-2023 at 10:49 AM.
Old 05-17-2023, 10:38 AM
  #39  
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His motor has now received a new calculation based on 12 s lipo and so my hand wind received the same recalculation nothing has improved for the Factory Lehner. The math shows 96.1% for the rewind and the plot shows 95.8% . The 4125 Lehner outrunner with parallel slots is 93.5%.

Here is the Plot data:
33,940 rpm
153 amps
Pin 6.394 kilowatts
Pout 6.125 kilowatts
Run time 3.85 minutes
Est speed 90.12 mph or 145.03408 km/h
Eff. 95.80 %

Christian's FLW Lehner 4125 is 480 grams. 1Boho orthocyclic mono strand single coils hand wound Align 700MX is 448.8 grams.

The corresponding unloaded Kv motor in the Lehner's line resistance is much higher than 5 milliohms!
No need to resist because its his math. Name:  cool.gif
Views: 78
Size:  1.0 KB

There is also no fear of over saturation at 153 amperes
Old 05-17-2023, 10:51 AM
  #40  
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with the measured constants any and everybody can compare any motor for themselves so for me its a stupid debate when anyone can easily calculate whos number 1


In this case it is me of course!!!

Bye Bye
Hubert
Old 05-17-2023, 11:01 AM
  #41  
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Its 5th grade math Kevin! so it is truly pathetic for people who cannot make their own determinations of TRUTH even with a freaking calculator!!!


Last edited by Clugh; 05-17-2023 at 11:10 AM.
Old 05-17-2023, 11:13 AM
  #42  
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If the administration cannot do this simple squared idle/stall math then they are not at all at home in a technical section.

They would lack the skills to determine the TRUTH!

Last edited by Clugh; 05-17-2023 at 11:17 AM.
Old 05-17-2023, 11:54 AM
  #43  
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Default Censor the Truth!!!




If the Administration knew anything really about electronics or BLDC machines it would be these 2 euro CES operatives who would be censored and or banned on our forums!

Last edited by Clugh; 05-17-2023 at 11:57 AM.
Old 05-17-2023, 11:59 AM
  #44  
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Deny it erase it I care less!!! It is YOUR LOSS NOT MINE!!!!

PAY THE 640 DOLLARS USD FOR AVERAGE EFFICIENCY!!!

IN THE BOAT RACE IT ONLY MEANS I WALK ALL OVER YOU.


Last edited by Clugh; 05-17-2023 at 12:03 PM.
Old 05-17-2023, 12:04 PM
  #45  
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Currently Active Users Viewing This Thread: 5 (2 members and 3 guests)
Clugh*, BOHO1


Old 05-17-2023, 12:18 PM
  #46  
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If there is an American hand winder of electric motors on these forums better than me he should make himself known.
Old 05-17-2023, 12:19 PM
  #47  
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Can you imagine what im gonna charge them for one of my engines and inverters when all this is over? I hope u got some money coz if you dont industry that understands the science will purchase them!! they have and never will be offered freelance inverter pcb engineering jobs like me. They will never be privy to SiCFET development like me either.

Last edited by Clugh; 05-17-2023 at 01:16 PM.
Old 05-17-2023, 12:26 PM
  #48  
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Kevin

I wont waste any more of your time with my rant but To make this easy and painless buy Futaba Radio with telemetry options. Its the best radio and always has been as far as I am concerned .
Old 05-17-2023, 01:27 PM
  #49  
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Here is the link to where they sit it now. I dont get it Kevin!

My new props from ABC - RCU Forums (rcuniverse.com)
Old 05-18-2023, 05:14 AM
  #50  
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Default Radio

Wow thatís a lot going on. Obviously being new I must have missed a lot. Iím just a guy trying to have fun and enjoy FE. I disliked dealing with Nitro fuel and have converted all but one to electric. I have a rigger that is next when I find right electric combo. Wanted to run this set up first

I will go with Futaba set up for radio.

Sounds like there are many options for FE and probably some that are better than others. Iím not trying to be fastest guy on planet. I am willing to try some new to me things but trying to keep set ups same and just change one item at time before I get lost. Once I get boat that stays stuck on water, Iíll know base line I can return to if lost.

Sorry that you seem to be going through things Iím completely in aware of. Hopefully it get worked out!
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